Inner seal for nozzles



March 17, 1931. A w 1 M5 1,797,033

INNER SEAL FOR NOZZLES Filed April 7, 192? gnucufo'c 0 W' Patented Mar.17, 1931 UNITED STATES PATENT. OFFICE GmRGE A. WILLIAMS, DECATUR,ILLINOIS, ASSIGNOR '10 WILLIAMS SEALING COB- POBATION,

OF DECATUR, ILLINOIS, A. CORPORATION 03 ILLINOIS INNER SEAL FOB'N'OZZLES Application filed April 7,

after the original contents have been red moved; the ob ect being toprevent the fraudill ulent use of the container to palm ofi' spuriouscontents, once the container has been em pfiied of its genuine contents.

e invention is use in connection with a sheet metal nozzle such asdescribed and claimed in my Patent No. 1,339,25, said nozzle beingdesigned for use with lever fastened: caps of the type shown in myPatents Nos. 1,108,959 and 1,436,133.

With these objects in view the invention consists in the novel featuresof construction and in the manner of combining the same all off-whichwill be fully described hereinafter and set forth in. the claims.

in the drawings forming a part of the specification Fig. 1 is asectional view of a sheet metal nozzle with seal applied thereto and capfastened thereon; Fi 2 is a similar View showing a slight modi cation;Fig. 3 is a horizontal sectional View of the seal; Fig. 1 is aperspective view of the same, and Fig. 5 is a plan View or" the modifiedform of seal.

in the practical embodiment of my invention I employ a container havinga sheet metal nozzle 11 which is formed with an outwardly projectingannular shoulder 12, and an inwardly rolled upper end 13. A cap 14having a locking lever. 15 isfitted upon the nozzle 11 and secured byturning the lever down as shown in Fig. 1, the lining 16 contacting withthe rolled-in edge 13 to tightly close the mouth.

Within the top of the nozzle is fitted acup shaped seal 17 of sheetmetal, the upper edge of which is rolled over as shown at 18 to conformand fit tight upon the rolled-in edge 13. The seal 17 is of such sizethat it fits snugly in the mouth of nozzle andhas integral tongues 19punched therefrom, the upper ends of said tongues being free and bentslightly outwardly so that they will slip beneath therolled-in ,edge'1'3[shown in Figs. 1 and 2 thereby prev'entingthe seal beparticularlyadapted for 1927. Serial 1T0. 181,700. c

into the container inasmuch as the tongues 19 engaging under therolled-in edge 13 prevent extraction of the seal from the nozzle-Consequently the only way to open the endof nozzle is to force the sealinwardly.

Anyone purchasing a container can tell at a glance whether the contentsare the original by simply removing the cap, and if the seal is in placeit indicates that the original contents are intact and on the other handif the seal is not in place, its absence indicates that the nozzle hasbeen opened.

'lhe container will of course have a proper warning legend markedthereon relative to not accepting the can if the seal is not intact inthe end of the nozzle. lhe cap tightly seals the nozzle when locked andthereby prevents the escape of any of the contents through the tongueopening In Figs. 2 and 5 1 have shown a slightly modified form of seal17 5 having the tongues 19 which act the same as hefore described, butthe bottom of the seal has a line of weakness punched therein so thatthe central part of the bottom can be ushed in without disturbing thebalance of t e seal. in every other respect the seal 17 f is identicalwith the seal 17 in construction and operation.

The cooperation between the seal and the particular type of nozzle isapparent from the drawings and the advantages of the entire assemblywill be obvious to those skilled in the art to which the device relates.

Having ll, claim is:

1. In a device of the kind described,the combination with a sheet metalnozzle having an inwardly and downwardly rolled edge at its upper end,of a cup shaped sheet metal seal fitted into the upper end of saidnozzle, the

thus described my invention, whatv upper edge of said seal being rolledoutwardly to conform to the upper side of said in rolled edge, the sidesof said seal having tongues iunched therefrom, said tongues enga mg t eunderside of said inrolled edge, an a cap fitted upon said nozzle andhavin a sealing lining contacting with said inrolle edge of the nozzleand the outrolled edge of said seal to securely close said nozzle.

2. In a device of the kind described, the combination with a sheet metalnozzle having an inwardly and downwardl rolled edge at its upper end, ofa on -shape seal fitted into the upper end of sai nozzle, the upper endof said seal being flared outwardly to enga e the inrolled portion ofthe nozzle, the be of said cup-shaped seal extendin downward ly belowthe inrolled edge 0 the nozzle, struck out portions of the sides of saidseal projecting laterally outwardly at definite points below theunderside of said inrolled edge whereby the removal of said sealoutwardly withoutmutilation of some art of the device is prevented, anda cap tted u on said nozzle and contacting with said inro ed edge forre-closing said nozzle upon removal of said seal.

In testimony whereof, I hereunto aflix my signature.

GEORGE A. WILLIAMS.

